
.clearfix::after{
    content: '';
    display: block;
    visibility: hidden;
    height: 0;
    clear: both;
  }
  
  
  /* 实现1px边框 */
  .scale-1px {
    position: relative;
    border: none;
  }
  
  .scale-1px:after {
    content: '';
    position: absolute;
    height: 1px;
    width: 100%;
    bottom: 0;
    left: 0;
    -webkit-transform: scaleY(0.5);
    transform: scaleY(0.5);
    -webkit-transform-origin: 0 0;
    transform-origin: 0 0;
  }
  
  
  .one-line {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }